| 稻壳裂解制备SiO2气凝胶的研究 |
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| 引用本文： | 侯贵华. 稻壳裂解制备SiO2气凝胶的研究[J]. 无机材料学报, 2003, 18(2): 407 |
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| 作者姓名： | 侯贵华 |
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| 作者单位： | 盐城工学院理化测试中心 盐城 224003 |
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| 摘 要： | 稻壳在稀盐酸中沸煮、干燥后,于540℃裂解,制得了一种SiO2气凝胶.ICP-AES测定结果表明了该气凝胶中SiO2质量含量为99.99％,激光粒度仪测定其体积平均粒径为20.77μm,BET法研究表明了该气凝胶的比表面积为251m2/g.并利用XRD、IR和SEM研究了稻壳在制备气凝胶过程中的结构变化.
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| 关 键 词： | 稻壳 气凝胶 裂解 制备 |
| 收稿时间： | 2002-11-21 |
| 修稿时间： | 2002-11-29 |
Preparation of SiO2 Aerogel by Rice Husk |
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| HOU Gui-Hua. Preparation of SiO2 Aerogel by Rice Husk[J]. Journal of Inorganic Materials, 2003, 18(2): 407 |
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| Authors: | HOU Gui-Hua |
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| Affiliation: | Center of Physical Testing and Chemical Analysis; Yancheng Institute of Technology; Yancheng 224003; China |
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| Abstract: | A SiO2 aerogel was prepared with rice husk, being cooked in boiling solution of diluent hydrochloric acid, then dried, and then pyrolyzed. The results show that the SiO2 mass content in aerogel is 99.99%, the average particle size is 20.77μm, and the specific surface area is 251m2/g determined by ICP-AES, particle size analyzer and surface area & pore size analyzer respectively. The structure transformation of rice husk during the aerogel preparation was investigated by XRD, IR and SEM. |
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| Keywords: | rice husk SiO2 aerogel pyrolysate preparation |
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